Process for producing weighted pile-yarn for colored velvets.



PETER SGHMID, 9E BASEL, SWETZERLANIF.

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T0 ZZZ whom it may concern: 7 Be it known that 1, PETER Serrano, merchant, a citizen of the Swiss Republic, and resident of Basel, Switzerland, have im'ented a new and useful Process for Producing l feighted Pile-Yarn for (lolored Velvets.

My invention relates to an improved process for producing weighted pile yarn for colored velvets, and it consists in the steps and processes herein described and claimed. The object of my invention is to provide an im roved weighted pile yarn for colored velve s, in which the silk fibers retain their inal structure and qualities and are unnornily ungummed to permit a regular and uniform penetration of tin salts and similar weighting substances, thereby preventing an irregular and lumpy deposition of the weighting substances, and enabling the pile to be evenly out to provide a smooth and lustrous velvet.

' penetration of tin salts and Numerous efforts havebeen made to produce a chappe-yarn retaining the original structure of the silk fibers and uniformly ungummed, to permit an even and uniform similar weighting substances, in order to furnish weighted pile yarn for'weaving. colored velvets, which could be evenly cut to furnish a lustrous velvet. It has been generally recognized in the trade that such use of chappe-yarn would be of great value in producing cheaper colored velvets, such as is done at present in the manufacture of black velvet,

which is weighted with vegetable substances instead of mineral salts.v

Heretofore, the chappe-yarn formed from silk wastes have been ungummed by treating either the silk wastes or the yarns in various dih'erent manners, but none of the previous processes have produced a uniformly un-- gummed chappe-yarn capable of use as Weighted pile yarn in Weaving colored velvets. In a Patent #8 i8605, granted to me on March 26, 1907,a process is disclosed for ungumming silk wastes, yarns, and tissues by treating them with soap lather, and said patent states that the treatment can be repeated asecond time for removing a further portion of the-gum. The process disclosed Specification of Letters lPatent.

Application filed December 12, 1911. Serial 133 o. 6435,5272.

in this prior patent is for treating the silk in only one state or form, such as either wastes, yarns, or'tissues, and said process does not insure the uniform :ungumming of the silk with a retention of the original structure of the fibers necessary for an even and uniform penetration of the weighting metallic salts.

By my improved process, the silk wastes are treated with soap lather for removing a portion of the gum without injur ng the original structure of is treated with soap lather to remove the final portion of the gum, and the fibers are then weighted and d This novel process of treating the sill; with soap lather successively in the form of wastes and yarns.

produces an absolutely uniform u umming and preserves the original structure of the fibers; thereby providing a'yarn which will be regularly and uniformly penetrated by weighting metallic salts. In oi pile yarn, 1 preferably employ weighting; substances equal to from -l0% to of the silk. v

My invention renders possible the ad?- vantageous manufacture" of weighted colored velvets, and also permits the use of lower quality of silk wastes in the production? of pile yarn.

I claim I lhe herein described process for produc;

ing weighted pile yarn for colored velvets,

which consists in treating silk wastes with fibers. The fibers are then combed spun nto yarn, which this production soap lather for'ungumming the latter with- I out injuring the original structure of the silk fibers, then combing and spinning the silk wastes to form'yarn, then treating the yarn with soap lather to produce a regular and uniform ungumming thereof, and'then weighting and dyeing the yarn.

In Witness whereof l have hereunto signed my namethis 29th day of November, 1911, in the presence of two subscribing witnesses.

' PETER SGHMID.

Witnesses:

Gno. .GIFFORD, AMAND BITT R. 

